def some(i, j, count):
    j = str(j) + "0"
    j1, j2 = int(j[0]), int(j[1])

    if i == j1+j2:
        count +=1
    return count




def aaa(count):
    r = 0
    for i in range(1, 12+1):
        if i in (1, 3, 5, 7, 8, 10, 12):
            for j in range(1, 32):
                r += some(i, j, count)
        elif i == 2:
            for j in range(1, 29):
                r += some(i, j, count)
        else:
            for j in range(1, 31):
                r += some(i, j, count)
    return r

print(aaa(0))